constify security_path_{mkdir,mknod,symlink}

... as well as unix_mknod() and may_o_create()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

fs/namei.c

@@ -2783,7 +2783,7 @@ static inline int open_to_namei_flags(int flag)
 	return flag;
 }
 
-static int may_o_create(struct path *dir, struct dentry *dentry, umode_t mode)
+static int may_o_create(const struct path *dir, struct dentry *dentry, umode_t mode)
 {
 	int error = security_path_mknod(dir, dentry, mode, 0);
 	if (error)

include/linux/lsm_hooks.h

@@ -1361,13 +1361,13 @@ union security_list_options {
 
 #ifdef CONFIG_SECURITY_PATH
 	int (*path_unlink)(const struct path *dir, struct dentry *dentry);
-	int (*path_mkdir)(struct path *dir, struct dentry *dentry,
+	int (*path_mkdir)(const struct path *dir, struct dentry *dentry,
 				umode_t mode);
 	int (*path_rmdir)(const struct path *dir, struct dentry *dentry);
-	int (*path_mknod)(struct path *dir, struct dentry *dentry,
+	int (*path_mknod)(const struct path *dir, struct dentry *dentry,
 				umode_t mode, unsigned int dev);
 	int (*path_truncate)(const struct path *path);
-	int (*path_symlink)(struct path *dir, struct dentry *dentry,
+	int (*path_symlink)(const struct path *dir, struct dentry *dentry,
 				const char *old_name);
 	int (*path_link)(struct dentry *old_dentry, struct path *new_dir,
 				struct dentry *new_dentry);

include/linux/security.h

@@ -1443,12 +1443,12 @@ static inline void security_skb_classify_flow(struct sk_buff *skb, struct flowi
 
 #ifdef CONFIG_SECURITY_PATH
 int security_path_unlink(const struct path *dir, struct dentry *dentry);
-int security_path_mkdir(struct path *dir, struct dentry *dentry, umode_t mode);
+int security_path_mkdir(const struct path *dir, struct dentry *dentry, umode_t mode);
 int security_path_rmdir(const struct path *dir, struct dentry *dentry);
-int security_path_mknod(struct path *dir, struct dentry *dentry, umode_t mode,
+int security_path_mknod(const struct path *dir, struct dentry *dentry, umode_t mode,
 			unsigned int dev);
 int security_path_truncate(const struct path *path);
-int security_path_symlink(struct path *dir, struct dentry *dentry,
+int security_path_symlink(const struct path *dir, struct dentry *dentry,
 			  const char *old_name);
 int security_path_link(struct dentry *old_dentry, struct path *new_dir,
 		       struct dentry *new_dentry);
@@ -1464,7 +1464,7 @@ static inline int security_path_unlink(const struct path *dir, struct dentry *de
 	return 0;
 }
 
-static inline int security_path_mkdir(struct path *dir, struct dentry *dentry,
+static inline int security_path_mkdir(const struct path *dir, struct dentry *dentry,
 				      umode_t mode)
 {
 	return 0;
@@ -1475,7 +1475,7 @@ static inline int security_path_rmdir(const struct path *dir, struct dentry *den
 	return 0;
 }
 
-static inline int security_path_mknod(struct path *dir, struct dentry *dentry,
+static inline int security_path_mknod(const struct path *dir, struct dentry *dentry,
 				      umode_t mode, unsigned int dev)
 {
 	return 0;
@@ -1486,7 +1486,7 @@ static inline int security_path_truncate(const struct path *path)
 	return 0;
 }
 
-static inline int security_path_symlink(struct path *dir, struct dentry *dentry,
+static inline int security_path_symlink(const struct path *dir, struct dentry *dentry,
 					const char *old_name)
 {
 	return 0;

net/unix/af_unix.c

@@ -953,7 +953,7 @@ fail:
 	return NULL;
 }
 
-static int unix_mknod(struct dentry *dentry, struct path *path, umode_t mode,
+static int unix_mknod(struct dentry *dentry, const struct path *path, umode_t mode,
 		      struct path *res)
 {
 	int err;

security/apparmor/lsm.c

@@ -250,7 +250,7 @@ static int apparmor_path_unlink(const struct path *dir, struct dentry *dentry)
 	return common_perm_rm(OP_UNLINK, dir, dentry, AA_MAY_DELETE);
 }
 
-static int apparmor_path_mkdir(struct path *dir, struct dentry *dentry,
+static int apparmor_path_mkdir(const struct path *dir, struct dentry *dentry,
 			       umode_t mode)
 {
 	return common_perm_create(OP_MKDIR, dir, dentry, AA_MAY_CREATE,
@@ -262,7 +262,7 @@ static int apparmor_path_rmdir(const struct path *dir, struct dentry *dentry)
 	return common_perm_rm(OP_RMDIR, dir, dentry, AA_MAY_DELETE);
 }
 
-static int apparmor_path_mknod(struct path *dir, struct dentry *dentry,
+static int apparmor_path_mknod(const struct path *dir, struct dentry *dentry,
 			       umode_t mode, unsigned int dev)
 {
 	return common_perm_create(OP_MKNOD, dir, dentry, AA_MAY_CREATE, mode);
@@ -273,7 +273,7 @@ static int apparmor_path_truncate(const struct path *path)
 	return common_perm_path(OP_TRUNC, path, MAY_WRITE | AA_MAY_META_WRITE);
 }
 
-static int apparmor_path_symlink(struct path *dir, struct dentry *dentry,
+static int apparmor_path_symlink(const struct path *dir, struct dentry *dentry,
 				 const char *old_name)
 {
 	return common_perm_create(OP_SYMLINK, dir, dentry, AA_MAY_CREATE,

security/security.c

@@ -410,7 +410,7 @@ int security_old_inode_init_security(struct inode *inode, struct inode *dir,
 EXPORT_SYMBOL(security_old_inode_init_security);
 
 #ifdef CONFIG_SECURITY_PATH
-int security_path_mknod(struct path *dir, struct dentry *dentry, umode_t mode,
+int security_path_mknod(const struct path *dir, struct dentry *dentry, umode_t mode,
 			unsigned int dev)
 {
 	if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry))))
@@ -419,7 +419,7 @@ int security_path_mknod(struct path *dir, struct dentry *dentry, umode_t mode,
 }
 EXPORT_SYMBOL(security_path_mknod);
 
-int security_path_mkdir(struct path *dir, struct dentry *dentry, umode_t mode)
+int security_path_mkdir(const struct path *dir, struct dentry *dentry, umode_t mode)
 {
 	if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry))))
 		return 0;
@@ -442,7 +442,7 @@ int security_path_unlink(const struct path *dir, struct dentry *dentry)
 }
 EXPORT_SYMBOL(security_path_unlink);
 
-int security_path_symlink(struct path *dir, struct dentry *dentry,
+int security_path_symlink(const struct path *dir, struct dentry *dentry,
 			  const char *old_name)
 {
 	if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry))))

security/tomoyo/tomoyo.c

@@ -178,7 +178,7 @@ static int tomoyo_path_unlink(const struct path *parent, struct dentry *dentry)
  *
  * Returns 0 on success, negative value otherwise.
  */
-static int tomoyo_path_mkdir(struct path *parent, struct dentry *dentry,
+static int tomoyo_path_mkdir(const struct path *parent, struct dentry *dentry,
 			     umode_t mode)
 {
 	struct path path = { parent->mnt, dentry };
@@ -209,7 +209,7 @@ static int tomoyo_path_rmdir(const struct path *parent, struct dentry *dentry)
  *
  * Returns 0 on success, negative value otherwise.
  */
-static int tomoyo_path_symlink(struct path *parent, struct dentry *dentry,
+static int tomoyo_path_symlink(const struct path *parent, struct dentry *dentry,
 			       const char *old_name)
 {
 	struct path path = { parent->mnt, dentry };
@@ -226,7 +226,7 @@ static int tomoyo_path_symlink(struct path *parent, struct dentry *dentry,
  *
  * Returns 0 on success, negative value otherwise.
  */
-static int tomoyo_path_mknod(struct path *parent, struct dentry *dentry,
+static int tomoyo_path_mknod(const struct path *parent, struct dentry *dentry,
 			     umode_t mode, unsigned int dev)
 {
 	struct path path = { parent->mnt, dentry };